EFFECTS OF RARE EARTH ELEMENTS ON HIGH TEMPERATURE OXIDATION RESISTANCE OF NiAl/CrMo(Hf)  ALLOY

J Chin Soc Corr Pro

2005, Vol. 25

Issue (2): 110-114 DOI:

Research Report

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EFFECTS OF RARE EARTH ELEMENTS ON HIGH TEMPERATURE OXIDATION RESISTANCE OF NiAl/CrMo(Hf) ALLOY

Shizhen Zhang;Jianting Guo;Weili Ren;Wenlong Zhou

大连理工大学材料科学与工程学院

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Abstract The effect of rare earth elements Ce and Nd on the oxidation resistance of NiAl-28Cr-5.5Mo-0.5Hf alloy has been studied in the paper.The microstructure and composition of oxide layer have been studied by means of X-ray diffractometer and scanning electron microscope with an EDAX unit. The results show that the addition of rare earth elements changes the content of the constituent scales in the surface scale, eliminates internal oxidation and reduces mass gain of the oxide.

Key words: intermetallic compounds NiAl high temperature oxidation rare earth elements

Received: 24 August 2003

ZTFLH:

174.42

Corresponding Authors: Shizhen Zhang

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Shizhen Zhang; Jianting Guo; Weili Ren; Wenlong Zhou. EFFECTS OF RARE EARTH ELEMENTS ON HIGH TEMPERATURE OXIDATION RESISTANCE OF NiAl/CrMo(Hf) ALLOY. J Chin Soc Corr Pro, 2005, 25(2): 110-114 .

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https://www.jcscp.org/EN/ OR https://www.jcscp.org/EN/Y2005/V25/I2/110

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